The answer would be -1 10/11.
convert 5 1/4 to improper fraction
simplify 5 * 4 to 20
simplify 20 + 1 to 21
convert 2 3/4 to improper fraction
simplify 2 * 4 to 8
simplify 8 + 3 to 11
21/-4 * 4/11
21 * 4 over -4 * 11
84 over -4 * 11
84/-44
21/-11
convert to mixed fraction ( -1 10/11 )
11 choose 7 is equal to 11 choose 4. 11*10*9*8/4/3/2=330.
Answer:
Think of even square roots close to 27: the closest is 25 which has a square root of 5. Now think of the number with an even square root after 25: 36 which has a square root of 6. Since 27 is between 25 and 36, the square root of 27 would be between 5 and 6.
Answer:
first check the smallest number that divide 784
i.e 2
784/2 = 392/2= 196/2 =98/2 =49/7=7
we get
748= 2*2*2*2*7*7
for square root take one out of 2 same number
square root of 784= 2*2*7 = 28
